Given:Universal Set U=1,5,6,8,10,12Subset B =8What is the complement of Set B in Set U?{8}{1,5,6,10,12}{1,8,10,12}{1,5,6,8,10,12} Get tutor helpSuppose that the functions f and g are defined as follows.f(x)=x+74g(x)=x5Find gf. Then, give its domain using an interval or union of intervals.Simplify your answers.(gf)(x)=∏2Domain of gf :\left[\left(\frac{\square}{\square},\square^{\square},(\square,\square)\right),\left[\square,\square\right],\square\cup\square,(\square,\square]\right),\left[\square,\square\right),\mathcal{O}/,\infty\right),\left[-\infty,\square\right),\left[\times,\(5\right]:\} Get tutor help